<template>
  <div class="list" ref="wrapper">
    <div>
      <div class="area">
        <div class="title border-topbottom">当前城市</div>
        <div class="button-list">
          <div class="button-wrapper">
            <div class="button">{{this.$store.state.city}}</div>
          </div>
        </div>
      </div>
      <div class="area">
        <div class="title border-topbottom">热门城市</div>
        <div class="button-list">
          <div class="button-wrapper" v-for="item of hotCities" :key="item.id" @click="handleCityClick(item.name)">
            <div class="button">{{item.name}}</div>
          </div>
        </div>
      </div>
      <div class="area" v-for="(item, key) of cities" :key = "key" :ref="key">
        <div class="title border-topbottom">{{key}}</div>
          <div class="item-list">
            <div
              class="item border-bottom"
              v-for="innerItem of item"
              :key= "innerItem.id"
              @click="handleCityClick(innerItem.name)">{{innerItem.name}}</div>
          </div>
      </div>
    </div>
  </div>
</template>

<script>
import Bscroll from 'better-scroll'
export default {
  name: 'CityList',
  props: {
    cities: Object,
    hotCities: Array,
    letter: String
  },
  mounted () {
    this.scroll = new Bscroll(this.$refs.wrapper)
  },
  watch: {
    letter () {
      if (this.letter) {
        const element = this.$refs[this.letter][0]
        console.log(this.letter)
        this.scroll.scrollToElement(element)
      }
    }
  },
  methods: {
    handleCityClick (city) {
      this.$store.dispatch('changeCityAction', city)
      // this.$store.commit('changeCityMutation', city)
      this.$router.push('/')
    }
  }
}
</script>

<style lang="stylus" scoped>
  @import '~styles/varibles.styl'
  .border-topbottom
    &:before
      border-color: #ccc
    &:after
      border-color: #ccc
  .border-bottom
    &:before
      border-color: #ccc
  .list
    position:absolute
    top: 2rem
    left:0
    right:0
    bottom:0
    overflow:hidden
  .title
    line-height: .44rem
    background: #eee
    padding-left: .2rem
    color: #666
    font-size: .26rem
  .button-list
    overflow:hidden
    padding: .1rem .6rem .1rem .1rem
    .button-wrapper
      float: left
      width: 33.33%
      .button
        margin:.1rem
        padding:.15rem
        line-height: .3rem
        text-align:center
        border:.02rem solid #ccc
  .item-list
    .item
      line-height: .76rem
      color: #666
      padding-left: .2rem
</style>
